The European XFEL (EuXFEL) is a free-electron laser in the X-ray range for
users. Its high availability is one of the key aspects of the machine. In 2022,
it entered in the sixth year of operation. The EuXFEL linac is based on the
TESLA superconducting RF technology, operating at 1.3 GHz with an RF pulse
length of 650 μs and a repetition rate of 10 Hz. The LLRF system is based
on the MicroTCA standard and relies on a high level of automation. In this
contribution, we review the LLRF operation at the EuXFEL and the development of
new tools and features to improve the monitoring and extend the usability of
the LLRF system.Comment: Talk presented at LLRF Workshop 2022 (LLRF2022, arXiv:2208.13680